Universal Auto-Rewind Spool Holder

Filament load/unload issues? MMU2 taking too much space? Not with this Universal Auto-Rewind spool holder! It keeps filament on the spool during unloading, up to four full revolutions. [Video compilation](https://youtu.be/03iUbhrU8xw)

This is a remake of the Original and Parametric Auto-Rewind Spool Holder, but with significant enhancements:

* Slipping point of the clutch can be adjusted in about 15 steps using the dial.
* One size fits almost all spools up to 1kg. Inner diameter 30-75 mm, max outer diameter 200 mm, max width 88 mm. Hubs for wider spools can be created with the customizer, same for hubs with narrow diameters. Stand for 3kg spools available [here](https://www.thingiverse.com/thing:3369189).
* Spring (v1 and v1.01) works both ways around: towards the axle and towards the outer rim. Note: flipping the direction requires re-calibration of the clutch tension!
* Spring v1.02+ and 3.x are direction independent, can be flipped around without changes in clutch tension.